Carbureter.



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Warme* .e i 'i onerion.I

enana: zei. -rnrrennor'nnrarrarorrs,rnnrana, .assreNon-'tro Herrera CARBUETOR.

CREURETER.

peci'catoii of Letters Patent.

retreated apr. 56,1915,

Application led June S, K512i Serial No. 702,613.

Jn y* ne; l o (LL atom] t may eOfLCh it iowa that l., FRANK H. Herrera, a

citiaen of the United Stated' residing at ln dianepolis, lliarion county, and State of lndiana7 invented and discovered, certain 'new and nsetul improvements in Carlincll reters, `wl'iieh the following is a speciication.

ii/'iy said invention consists in certain im Re prow M the details of construction ci certain is or carhureters for internal eoiinliufn "i engines and it relates especially the upper end thereof, and the dotted line L l-Ji "s 'the portionsniarlred A 'the mixing chamber,

section carrying the gasolene laid several parte, as an of 'well known construction, carhureter in f of appropriate reign.v y `g it vis provided with an air cage coyered hy valve 'i0 in the form en fr which is of a d'sl adapted to cover' the inner end of :smid air c Je.' Said dislr is mounted upon the lower end of a lever .1l which is ulcram-ed a shaft 1&2., mounted in suitable inge the s'des of a hollow ness al on the top chamber A. fi. part 13 i i" entends shove the ulcrurn 1Q; a, ce ed spring 14 is interposed between iront face thereof and the inner end of f in adjusting nut 15 mounted, by serewethreaded connection, in an y, Big-3 a central vertical' aperture in the outer end of boss al. A`

spring detent 16 secured to the outer-face of the casing is adapted to lbear against the ribbed periphery of said nut 15 and hold the same from turning exceptwhen force'is applied. A

In' use, the carloureter is employed and operatesin a gen-eral Way the same as carbureters of common construction except valve l() is held to its seat against the inner `end of air cage a by the tension of spring 14, which tensiommay be adjusted by turning screw l5 in whicheverdi'rection may be required to secure the desired adjustment.

ln operation, upon starting, or at low speed7 valve 10 is normally held closedbut when the -speed increases andthe suction increases saidyalve is 'opened and air admitted into the mixing chamlher Where it niingles with the spraycoming through the suction tube 17 in theusual vmanner and isdralitn into the engine cylinders from said mixing chamber through 4the outlet a2.

When the operation of the engine indicatesa fuel of too poor amixture, the tension of spring le is tightened to hold valve 16 so as to Aadmit a smaller quantity of air. VOn the other hand, when the mixture is too rich, the

tension of thespring :is/relaxed to admit a.

larger supply of air until the desired character oi mixture is secured. A lug 18 is cast on the inside of casing Atolimit the inWa lfd swing of said valve 10. j Having thus 'fully described' my said in- TJention what l claim as new and desire to secure by Letters Patent iss-'- 'A'. carburetor comprising a mixing chamher with an auxiliary air inlet and a hollow hess on the top thereof, a bearing suppoi ted in said hollow boss to one'side of the auxiliary air inlet to said mixing chamber, a

lever fulcrumed on said bearing andextendf' ing each. Way therefrom?` a valve for controlling said auxiliary air inlet mounted-0n the lower end of said lever and adapted to' cover said inlet, a screw-threaded socket adjustahl adjlicent to the opposite end of said` lever means for securing said socketin adJusted position, and a spring mounted 1n said socket and adapted to bear against the end.

mounted in the side of said hollow boss' of seid lever above said fulcrum, whereby this twenty-first day of May, A. D. nineteen ,said valve is normally held closed and under hundred and twelve.

tension which may be repdly varied or acl- FRANK H. HEITGER. [L 5.] justed, substantially as set forth. Witnesses: 5 In Witness whereof, I have hereunto set E. XV. BRADFORD,

. my hand and seal at Indianapolis, Indiana, A.. C. RICE. .Y 

